F-tile Architecture and PMA and FEC Direct PHY IP User Guide

ID 683872
Date 1/25/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

2.3.2.1.3. FGT Gray-Coder and Pre-Coder

Output lanes transmitting PAM4 map to gray-coded, pre-coded, or gray-coded and pre-coded PAM4 symbols. For NRZ signals, the gray-coder and pre-coder are bypassed.

For the FGT gray-decoder and pre-decoder, reverse the process for the FGT gray-coder and pre-coder.